GCF for 28 and 51

What is the Greatest common Divisor of 28 and 51?

Answer: GCF of 28 and 51 is 1

(One)

Finding GCF for 28 and 51 using all factors (divisors) listing

The first method to find GCF for numbers 28 and 51 is to list all factors for both numbers and pick the highest common one:

All factors of 28: 1, 2, 4, 7, 14, 28

All factors of 51: 1, 3, 17, 51

So the Greatest Common Factor for 28 and 51 is 1

Finding GCF for 28 and 51 by Prime Factorization

Related Calculations

See Also

GCF Table

Number 1Number 2GCF
13511
14511
1551
16511
1751
1851
19511
20511
2151
22511
23511
24513
25511
2651
27513
2851
29511
30513
31511
32511
33513
3451
35511
3651
37511
38511
39513
40511
41511
42513

About "Greatest Common Factor" Calculator

This calculator will help you find the greatest common factor (GCF) of two numbers. For example, it can help you find out what is the Greatest common Divisor of 28 and 51? (The answer is: 1). Select the first number (e.g. '28') and the second number (e.g. '51'). After that hit the 'Calculate' button.
Greatest Common Factor (GCF) also known as the Greatest Common Divisor (GCD) or Highest Common Factor (HCF) - it is the largest positive integer that divides each of the integers with zero remainder

FAQ

What is the Greatest common Divisor of 28 and 51?

GCF of 28 and 51 is 1